Articles → AWS → AWS Lambda Pricing

AWS Lambda Pricing

In this article, we will calculate the AWS lambda pricing.

Requirement

A function has 128 MB of memory that executes 2 million times a month running at 200ms each time. Another function has 512 MB of memory that executes 3 million times a month running at 300ms each time.

Charges

There are 2 types of charges: -

Function execution Charge
Memory charge

Lambda Pricing Charges

Amazon lambda function provides free 1 million requests per month and 400,000 GB-seconds of compute time per month. As per the lambda pricing page, these are charges.

Picture showing the lambda pricing in AWS portal

Click to Enlarge

Execution Charges

Number of execution requests per month from function 1 = 2 million

Number of execution requests per month from function 2 = 3 million

Total number of free requests per month = 1 million

Total number of paid requests = (3 million + 2 million) -1 million = 4 million

Request charges = 4 million X $0.2 = $0.8

Function 1 takes 200ms (0.2 seconds) to execute 1 million requests. So, the total number of execution seconds is 2 million X 0.2 = 0.4 seconds.

Similarly, function 2 takes 300ms (0.3 seconds) to execute 1 million requests. So, the total number of execution seconds is 3 million X 0.3 = 0.9 seconds.

Calculation Of Memory Allocation Charges

Total GB-second for function 1 = (128/1024) GB X0.4 million seconds = 50,000 GB-seconds.

Total GB-second for function 2 = (512/1024) GB X0.9 million seconds = 450,000 GB-seconds.

Compute Usage = 50000 + 450000 – 400000 = 100000 GB seconds.

Compute Charges = 100000 X $0.00001667 = $1.67

Total charges = $0.8 + $1.67 = $2.47

Posted By -	Karan Gupta

Posted On -	Friday, June 30, 2023

Query/Feedback

Your Email Id		**

Subject		*

Query/Feedback	Characters remaining 250	**